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Old 10-17-2012, 11:46 AM   #11
herman

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Fiber-Volume fraction.

In other words: you need more resin. Use less vacuum. Or instead of closing the resin feed after infusion, close the vacuum, and leave the resin open.

Or use MTI hose...
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Old 09-27-2013, 11:11 AM   #12
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This has helped a lot in understanding. I wish I would have ran into this process before I had laid a bunch of parts.
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Old 07-14-2017, 12:06 AM   #13
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Default An even more basic infusion tut

Just finished this PDF Tutorial on how I make a Longwood Cigar pen for those who may be interested.

Les
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Old 07-23-2017, 01:02 PM   #14
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Hi, i have make an order for resin and i'll start infusion.
It's crazy to read all the posts on this and my head is satured about all i had read everywhere.
I 'll try with MTI hose.
For the depression,it's -1 bar right?
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Old 07-31-2017, 04:00 PM   #15
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Quote:
Originally Posted by Floflo68 View Post
Hi, i have make an order for resin and i'll start infusion.
It's crazy to read all the posts on this and my head is satured about all i had read everywhere.
I 'll try with MTI hose.
For the depression,it's -1 bar right?
Full vacuum, which tends to be read in mm/Hg rather than bar; but yes it's around -1 bar. 29.9mm/Hg is what you will likely see written a lot.
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Old 08-07-2017, 12:26 AM   #16
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Thank Hanaldo,i will make a panel first for see how works my set up and then finish another mold for test on a real tiny parts..
I will post pictures!!
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Old 11-13-2017, 01:14 PM   #17
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Hi ,i have received my leak detector greisinger 200-14 and i think try infusion next week...
I look every video about infusion and i saw something that i can't really understand/

Why some peoples put or not a perfored film between peel ply and the the green mesh?
Is it just for remove easily the green mesh to the peel ply?
Thanks
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Old 11-13-2017, 06:01 PM   #18
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Quote:
Originally Posted by Floflo68 View Post
Hi ,i have received my leak detector greisinger 200-14 and i think try infusion next week...
I look every video about infusion and i saw something that i can't really understand/

Why some peoples put or not a perfored film between peel ply and the the green mesh?
Is it just for remove easily the green mesh to the peel ply?
Thanks
Yes, it helps removal of the mesh. If you have a released coated nylon peel ply don't really need it. If using natural peel ply then you are better to use it. You can also use the release film with no peel ply under it. Only need peel ply for secondary bonding, or if you prefer that type of B side part finish
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Old 11-20-2017, 11:25 AM   #19
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Hi,
Today i have made a test with my new leak detector gdh 200-14
..
I have put the detector just after the pump and close the valve for keep the vaccum..
My vaccum was to 0.030mbar (or 0,225 HHmg)and after 20 minutes,my vaccum was to 0,049mbar...is it a too big leak if i have with my bag the same thing???
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Old 11-20-2017, 04:47 PM   #20
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Quote:
Originally Posted by Floflo68 View Post
Hi,
Today i have made a test with my new leak detector gdh 200-14
..
I have put the detector just after the pump and close the valve for keep the vaccum..
My vaccum was to 0.030mbar (or 0,225 HHmg)and after 20 minutes,my vaccum was to 0,049mbar...is it a too big leak if i have with my bag the same thing???
First, best to place the gauge is at the resin inlet (That way you are reading what the pressure is at the part). Second, your leak of 19mbars/20mins is too big for infusion. If you cannot find the leak, then you should either replace the bag, or put a second bag on, with flow media between the bag films. Good luck
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